This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 13 |
| 5 | 12 |
| 6 | 49 |
| 7 | 93 |
| 8 | 5 |
| 9 | 127 |
| 10 | 803 |
| 11 | 1703 |
| 12 | 3755 |
| 13 | 271 |
| 14 | 19338 |
| 15 | 45275 |
| 16 | 108229 |
| 17 | 262604 |
| 18 | 647083 |
| 19 | 1613941 |
| 20 | 2036099 |
| 21 | 576341 |
| 22 | 13331695 |
| 23 | 264583 |
| 24 | 90049334 |
| 25 | 236302157 |
| 26 | 38973748 |
| 27 | 330784573 |
| 28 | 8814122981 |
| 29 | 7861906901 |
| 30 | 63359160443 |
| 31 | 42703885427 |